from openpyxl import load_workbook

class excel():
    def __init__(self,path,sheetname):
        self.path=load_workbook(path)
        self.sheetname=self.path[sheetname]

    def get_data(self):
        datalist=[]
        for line in self.sheetname:
            lis=[]
            lis.append(line[0].value)
            lis.append(line[1].value)
            lis.append(line[2].value)
            datalist.append(lis)
        datalist.pop(0)
        return datalist


if __name__ == '__main__':
    path= r'/unit__001/unit__003/data.xlsx'
    sheetname='Sheet1'
    dy = excel(path,sheetname)
    print(dy.get_data())